Teaching CTET (Paper 1 & Paper 2) Mock Test Series 2025 Quantitative Aptitude Number System Multiples and Factors
Which of the following is the correct Prime factors of number 420 ?
1
2 × 2 × 7 × 15
2
2 × 2 × 5 × 21
3
2 × 6 × 5 × 7
4
2 × 2 × 3 × 5 × 7