1, 2, 5, 7, 10, 14, 35, 70
Chat with our AI personalities
70 and 90
2-69
51,52,54,55,56,57,58,60,62,63,64,65,66,68,69 are the composite numbers between 50 and 70.
ANSWER: 70 and 80 are not prime numbers. They are composite numbers:70 is a composite number because the factors of 70 other 1 and itself (70) are 2, 5, 7, 10, 14, and 35.80 is also a composite number because the factors of 80 other 1 and itself (80) are 2, 4, 5, 8, 10,16, 20, and 40.
452