Question

true or false 1.A number written as a product of Prime factors is a factorisation. 2.Prime factors of 91 is 13 and 7. ​

Answer 1

Answer:

1)The Sun directly heats the air in our atmosphere.

2)Higher temperature means faster moving molecules.

3)Air is a great conductor of heat.

4)Thermal energy always moves from warmer to cooler objects.

Answer 2

Answer:

1

The process of writing a number as the product of prime numbers is prime factorization. Prime numbers are the numbers that have only two factors 1 and the number itself like 2, 3, 5, 7, 11, 13, 17, 19, and so on.

2

Solution: Since, the prime factors of 91 are 7, 13. Therefore, the product of prime factors = 7 × 13 = 91