



Is 28 a happy number? (Sequence ends in 1 when iteratively replaced by the sum of the squares of its digits) 395
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what is 28 divisible by Informational
- Can 28 be divided evenly by 13? 99
- Does 28 have any common factors with 13? 166
- Does 28 have any common factors with 23? 170
- Is 8 a factor of 28? 72
- Is 28 divisible by 28? 29
- Explain the meaning of "28 is divisible by 7". 283
- Is 28/23 a whole number? 213
- If you have 28 items, can you divide them into equal groups of 8 with no remainder? 223
- How many divisors does 28 have? 31
- Can you use Venn diagrams to illustrate the divisors of 28 and another number? 324
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