Divisibility rules and prime factorization
Use divisibility rules for 2, 3, 4, 5, 6, 8, 9, and 10, and represent composite numbers as a product of their prime factors. Unlimited questions, five difficulty levels, and a full worked solution every time, included free with weekly lessons.
Try one
Is 2475 divisible by 9? Answer yes or no.
Answer: yes
See one solved, step by step
Is 723 divisible by 6? Answer yes or no.
📘 Worked solution
1A number is divisible by 6 if it's divisible by both 2 and 3.That's the divisibility rule for 6.
2Check 723 against the rule.Apply the rule to 723.
3Answer: no723 does not follow the rule, so it is NOT divisible by 6.
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