You have to use the rules of 4 and 9 Using the rules of 2 and 18 won't work because the smallest common multiple of 2 and 18 is 18 not 36. 3 and 12 won't work either because the smallest common multiple of 3 and 12 is 12 not 36. However 4 and 9 does work because their biggest common divisor is 1 so multiplying them works. The biggest common divisor of 2 and 18 is 2 and the biggest common divisor of 3 and 12 is 3
fractions help you write out divisibility rules because divisibility rules help with fractions . Glad I would help good bye
I
12
use divisibility rules to find at least four factors of the number 19
1840 / 1 = 1840 1840 / 2 = 920 1840 / 4 = 460 1840 / 5 = 368 1840 / 8 = 230 1840 / 10 = 184 1840 / 16 = 115 1840 / 20 = 92 1840 / 23 = 80 1840 / 40 = 46 1840 is a multiple of 1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920 and itself A number is a multiple of 1840 if it's a multiple of 23 and 80 at the same time. It also works if it's a multiple of 5 and 368, 16 and 115 or 5, 16 and 23 1840 = 2⁴ x 5 x 23 = 16 x 5 x 23 = 80 x 23
You have to use the rules of 4 and 9 Using the rules of 2 and 18 won't work because the smallest common multiple of 2 and 18 is 18 not 36. 3 and 12 won't work either because the smallest common multiple of 3 and 12 is 12 not 36. However 4 and 9 does work because their biggest common divisor is 1 so multiplying them works. The biggest common divisor of 2 and 18 is 2 and the biggest common divisor of 3 and 12 is 3
fractions help you write out divisibility rules because divisibility rules help with fractions . Glad I would help good bye
I
The divisibility rules for a prime number is if it is ONLY divisible by 1, and itself.
Jason Delaware
12
You can always check on the divisibility of a number by dividing it into another number. But if you know the divisibility rules, you can get that information easier and faster.
use divisibility rules to find at least four factors of the number 19
i think divisibility rules help with fractions because it helps you reduce the fraction to make i a simple fraction.
Three
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!