First BanCorp. (FBP) 10-Q 2018 Q1 Quarterly report

EXHIBIT 32.1

CERTIFICATION

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18,
United States Code)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of First BanCorp., a Puerto Rico corporation (the “Company”), does hereby certify, to such officer’s knowledge, that:

The Quarterly Report on Form 10-Q for the quarter ended March 31, 2018 (the “Form l0-Q”) of the Company fully complies with the requirements of section l3(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 10, 2018	/s/ Aurelio Alemán
	Name: Aurelio Alemán
	Title: President and Chief Executive Officer