7 is the fourth Prime number
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It's lucky
It's an even number It's a rational number It's a composite number Its prime factors are 2, 5 and 7 It's the product of 7 and 10 It's LXX in Roman numerals
1. 1+9=10 2. 2+8=10 3. 3+7=10 4. 4+6=10 5. 5+5=10
70 ÷ 10 = 7
It is 63 and 7/10 as a mixed number