By Dalia Javiel. A number that can be divided without remainder by at least one positive number other than itself and 1. Any number that is not prime.

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Presentation transcript:

By Dalia Javiel

A number that can be divided without remainder by at least one positive number other than itself and 1. Any number that is not prime or 1: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99 and 100 itself.

9 can be divided evenly by 1, 3, and 9. So 9 is a composite number because it can also be divided by 3 evenly. 9 can be divided evenly by 1, 3, and 9. So 9 is a composite number because it can also be divided by 3 evenly.

A number that has two divisors: 1 and itself. Prime numbers in white boxes.

According to Euclid, there is an infinite number of Primes. Euclid of Alexandria According to Euclid, there is an infinite number of Primes. Euclid of Alexandria

 Birth: 300 B.C.  Death: Unknown  Residence: Alexandria, Egypt  Field: Mathematics  Known for: Euclidian Geometry  Birth: 300 B.C.  Death: Unknown  Residence: Alexandria, Egypt  Field: Mathematics  Known for: Euclidian Geometry

6=2x3 Divided into two groups: 6=2x3 Divided into two groups:

7 cannot be divided evenly: