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Take each digit of the number (371) in reverse order (173), multiplying them successively by the digits 1, 3, 2, 6, 4, 5, repeating with this sequence of multipliers as long as necessary (1, 3, 2, 6, 4, 5, 1, 3, 2, 6, 4, 5, ...), and adding the products (1×1 + 7×3 + 3×2 = 1 + 21 + 6 = 28). The original number is divisible by 7 if and only if ...
The 400,000 man unit of Abijah may represent a reduction of 70,000 men said to have been lost due to the plague that hit the land of Israel (1 Chron. 21:14; cf. 2 Sam. 24:15). In addition, when Jeroboam goes into battle against Abijah, he is recorded as commanding exactly twice the number of Abijah's men: 800,000.
In the Bible, 666 is the number of talents of gold Solomon collected each year (see 1 Kings 10:14 and 2 Chronicles 9:13). In the Bible, 666 is the number of Adonikam 's descendants who return to Jerusalem and Judah from the Babylonian exile (see Ezra 2:13 ).
Two properties of 1001 are the basis of a divisibility test for 7, 11 and 13. The method is along the same lines as the divisibility rule for 11 using the property 10 ≡ -1 (mod 11). The two properties of 1001 are 1001 = 7 × 11 × 13 in prime factors 10 3 ≡ -1 (mod 1001) The method simultaneously tests for divisibility by any of the factors ...
Cuisenaire rods: 5 (yellow) cannot be evenly divided in 2 (red) by any 2 rods of the same color/length, while 6 (dark green) can be evenly divided in 2 by 3 (lime green). In mathematics, parity is the property of an integer of whether it is even or odd. An integer is even if it is divisible by 2, and odd if it is not. [1]
Psalm 85 is the 85th psalm of the Book of Psalms, one of a series of psalms attributed to the sons of Korah. In the English of the King James Version , this psalm begins: "L ORD , thou hast been favourable unto thy land".
Similarly, their respective prime indices (21 and 12) in the list of prime numbers are also permutations of the same digits (1, and 2). 73 is the 21st prime number. It satisfies the "product property" since the product of its decimal digits is precisely in equivalence with its index in the sequence of prime numbers . i.e., 21 = 7 × 3.
60 is the 4th superior highly composite number, [1] the 4th colossally abundant number, [2] the 9th highly composite number, [3] a unitary perfect number, [4] and an abundant number. It is the smallest number divisible by the numbers 1 to 6. The smallest group that is not a solvable is the alternating group A 5, which has 60 elements.