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What is the number 32 divisible by?
The number 32 is divisible by 1, 2, 4, 8, 16, and 32.
Is a number divisible by 4 also a divisible by 8?
Every other number: 8, 16, 24, 32, 40... No, a number can be divisible by 4 but not divisible by 8; an example is 12.
Why isn't a number divisible by 8 if it divisible by both 4 and 2?
Look at 12. Not divisible by 8 but divisible by 4 and 2. Look at 4. Same thing. The equation 8x-4 will give you any number divisible by 4 and 2, but not 8 32 is divisable by all three. 8x4=32, 2x16=32
What number that is divisible by 4 is also divisible by 8?
4 x 4 = 16 2 x 8 = 16 8 x 4 = 32 4 x 8 = 32...
Is 211032 divisible by 4?
Yes. To check if a number is divisible by 4, if the last 2 digits (as a number) are divisible by 4, so is the original number. 32 = 4 x 8 so as 32 is divisible by 4, so is 211032. An alternative test for 4: add the last digit to twice the preceding digit, and if this sum is divisible by 4 so is the original number. This can be repeated until a single digit remains which must be 4 or 8 (to be divisible by 4) if the original number is divisible by 4. for 211032: 2 + 3x2 = 8 → [single digit 8 which] is divisible by 4, so 211032 is also divisible by 4.
