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Number Theory

Level 23 / realistic untimed

Rules - small (2, 3, 4, 5)

3 visual steps / divisibility rule

1. Last two

divisible? 324 by 41. Last twolast two digits 24.1last two digits 24224 divisible by 43answer yes
last two digits 24.

last two digits 24.

2. Multiple of 4

divisible? 324 by 42. Multiple of 424 divisible by 4.1last two digits 24224 divisible by 43answer yes
24 divisible by 4.

24 divisible by 4.

3. Answer yes

divisible? 324 by 43. Answer yesanswer yes. Read answer answer yesanswer yes.
answer yes.

answer yes.

Practice Level 23

Use the visible move, then type only when the answer is clear.

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